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Amnesie
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Joined: 30/06/2020
Location: Germany
Posts: 671

Posted: 09:10pm 30 Jul 2025

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Hello,

obviously I am to stupid to understand colour mapping.

I am using picoMite HDMI, latest version on Resolution 848 in Mode 3.

I tried everything to pick a colour from the RGB palette but can't get ANY change in colour not grey not blue nothing. It doesn't react at all.

Testprogram:

This should print the last (15) colour in grey, instead of white.. But it doesn't. It prints white. But no matter what colour I pick as an RGB value, there is no change at all.

Then I tried out of couriousity:

Quote
MAP GREYSCALE

Doesn't work either: Syntax Error...

Also, I think in the manual is an error (typo?)

Page: 177

Quote
MAP(8),RGB(100,100,100)
MAP SET
Pixel x,y,map(8)

Shouldn't it be: MAP(8)=RGB(100,100,100) ??

But even this example doesn't work.

I have no clue what to do. Could anybode please give me a working example of your choice?

Greetings
Daniel

toml_12953
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Joined: 13/02/2015
Location: United States
Posts: 442

Posted: 12:43am 31 Jul 2025

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Amnesie said Hello,

This should print the last (15) colour in grey, instead of white.. But it doesn't. It prints white. But no matter what colour I pick as an RGB value, there is no change at all.

You're mapping gray to color 15. After MAP SET when you specify color 15, you'll get gray. Instead of Map(15) at the end of the box statement, try just the number 15.

Box 200,200,10,10,1,1,15 'grey box

At least that's what I think the manual is saying.
Edited 2025-07-31 10:48 by toml_12953

Peter63
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Joined: 28/07/2017
Location: Sweden
Posts: 92

Posted: 05:30am 31 Jul 2025

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I have tested MAP-change.
Using: PicoMiteHDMI MMBasic USB RP2350A Edition V6.00.03
OPTION RESOLUTION 640 = works
OPTION RESOLUTION 800 = does not work

Why that is, I don't know.

/Peter63

Peter63
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Joined: 28/07/2017
Location: Sweden
Posts: 92

Posted: 05:45am 31 Jul 2025

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I change to OPTION RESOLUTION 800
and tested this...
> color rgb(red)
> map(8)=rgb(128,128,128)
Error : Invalid for this screen mode

Oohhh I was in MODE 1 here... so i tested this...

MODE 2
Color RGB(white),RGB(red)
Print "Some text to print..." ' print white text, RED background
Map(8)=RGB(128,128,128) ' change RED to gray
Map set
End

No change from RED to GRAY ??

/Peter63
Edited 2025-07-31 15:56 by Peter63

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10312

Posted: 07:28am 31 Jul 2025

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There is bug in the map command for the newer resolutions. It works properly for 640x480, 1024x768 and 1280x720.
Obviously no-one has previously tried it before on anything else - will look at it

Amnesie
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Joined: 30/06/2020
Location: Germany
Posts: 671

Posted: 08:44am 31 Jul 2025

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Peter and Peter63,

thank you very much for confirming this

Now I tested the other resolution you have mentioned, they work indeed! And I thought that I am just too stupid. But anyways, at least I found a typo in the manual this way

Greetings
Daniel
Edited 2025-07-31 18:50 by Amnesie

Martin H.

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Joined: 04/06/2022
Location: Germany
Posts: 1233

Posted: 12:29pm 31 Jul 2025

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Daniel,
maybe this helps
Cheers
Martin

'no comment

Amnesie
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Joined: 30/06/2020
Location: Germany
Posts: 671

Posted: 03:19pm 31 Jul 2025

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Martin,

thank you for the link! Pretty amazing what you can do with it! I sucessfully tested it. Mapping is not working on the new resolutions, which I initially tested it with. But with the "old" resolution it works fine.

Greetings
Daniel

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